@media screen and (max-width: 1800px) and (min-width: 401px) {
    .main_contener {
        width: 60%;
        margin: 0 auto;
        min-height: 600px;
    }
    .tag-group{width: 100%;height: 60px;background-color:#f3f3f3;min-height: 200px;}
}
@media screen and (min-width: 400px) and (max-width: 700px) {
     .main_contener {
        width: 100%;
        margin: 0 auto;
        min-height: 600px;
    }
    .tag-group{width: 100%;height: 60px;background-color:#f3f3f3;min-height: 200px;}
}
@media screen and (min-width: 280px) and (max-width: 400px) {
      .main_contener {
        width: 100%;
        margin: 0 auto;
        min-height: 600px;
    }
    .tag-group{width: 100%;height: 120px;background-color:#f3f3f3;min-height: 400px;}

}